CN209841746U - Multi-index measuring device for photothermal performance of pavement material - Google Patents
Multi-index measuring device for photothermal performance of pavement material Download PDFInfo
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- CN209841746U CN209841746U CN201920538202.XU CN201920538202U CN209841746U CN 209841746 U CN209841746 U CN 209841746U CN 201920538202 U CN201920538202 U CN 201920538202U CN 209841746 U CN209841746 U CN 209841746U
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Abstract
The utility model discloses a many indexs of road surface material light and heat performance survey device, including sealed box, the subassembly is shone to the internal top of seal box is installed, refrigerating plant is installed to sealed box inner wall bottom, install the heater strip on one of them width direction inner wall of sealed box, install case temperature sensor on the sealed box length direction inner wall, install the irradiation subassembly on another width direction inner wall of sealed box, display one side ann has multichannel temperature recorder through screw fastening connection. Has the advantages that: the utility model can provide a more real sun-irradiated road surface simulation test environment by arranging the irradiation device, the heating device and the refrigerating device; the method can be used for integrally measuring multiple indexes such as the photo-thermal performance of the pavement material, the accuracy and the operability of the test are improved, the acquisition of the related detection data of the low-heat-absorption asphalt pavement is facilitated, and the labor intensity of operators is remarkably reduced.
Description
Technical Field
The utility model relates to a road surface detection device technical field, concretely relates to many indexes of pavement material light and heat performance survey device.
Background
As a common pavement type, the asphalt pavement is widely applied to urban road construction in China, and related researches aiming at low-heat-absorption asphalt pavements are continuously carried out at present. The existing testing device irradiates a road thermal environment by simulating sunlight irradiation to determine corresponding data, the testing method has larger error, and meanwhile, as the size of a testing piece of the asphalt mixture is relatively larger, equipment specially researched and developed is lacked, researchers need to perform assembly tests according to related testing methods, and the operation is complicated; the collection of partial data needs researchers to carry out determination outdoors or use expensive determination instruments for auxiliary cooperation, the factors all put forward higher requirements on test conditions, the determination of corresponding indexes is also carried out independently, the test of each index uses an independent device, the difference of different experimental test conditions before and after brings great irrationality to the research, and the labor intensity of research and development personnel is obviously increased.
At present, research and development on such equipment in the market are not yet mature, so that research and development on a test device for related evaluation indexes of the low heat absorption asphalt pavement material are needed to be carried out on the basis of the existing equipment so as to achieve the aims of simulating solar illumination more truly, integrating a photo-thermal performance test device with instruments, testing multiple indexes and the like, and provide corresponding technical means and good test conditions for research and development of low heat absorption asphalt pavement structures and materials.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a many indexs of road surface material light and heat performance survey device just in order to solve above-mentioned problem to solve present technical problem among the prior art. The preferred technical scheme among the technical schemes provided by the utility model has the advantages that the irradiation device, the heating device and the refrigerating device are arranged, the specific structure is simplified, the operation is convenient, the popularization is convenient, and a more real sun irradiation road surface simulation test environment can be provided; through the cooperation of built-in detection subassembly, can realize the survey of a plurality of indexes integration such as road material light and heat performance, when improving experimental accuracy and maneuverability, be convenient for gather detection data, need not operating personnel design the experiment again and make up, technical effect such as practicality is strong, see the explanation below for details.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of many indexs of road surface material light and heat performance survey device, including sealed box, sealed box includes inner box and outer container, sealed box door is installed to sealed box outer wall, the subassembly that shines is installed at the internal top of sealed box, refrigerating plant is installed to sealed box inner wall bottom, install the heater strip on one of them width direction inner wall of sealed box, install case temperature sensor on the sealed box length direction inner wall, install the irradiation subassembly on another width direction inner wall of sealed box, install the display on the outer wall of sealed box width direction, display one side ann has multichannel temperature recorder through screw fastening connection, the controller is installed to multichannel temperature recorder top, be provided with thermocouple and heating plate in the sealed box, controller and refrigerating plant, the temperature recorder, The irradiation subassembly the heater strip with heating plate electric connection, the thermocouple with multichannel temperature recorder electric connection.
Preferably, the heating sheet is a polyimide heating sheet.
Preferably, a centrifugal fan is further arranged in the sealed box body.
Preferably, the bottom of the sealed box body is provided with a test piece shelf, the inner wall of the sealed box body is provided with limiting clamping grooves at equal intervals along the height direction, and the test piece shelf is clamped in the limiting clamping grooves.
Preferably, the irradiation assembly comprises three xenon lamp tubes arranged in parallel and a light-condensing lampshade for ensuring that light emitted by the xenon lamp is uniformly irradiated in the sealed box body, and the xenon lamp tubes are electrically connected with the controller.
Preferably, a heat-insulating interlayer made of polyurethane foam heat-insulating material is arranged on the inner wall between the inner box and the outer box of the sealed box body.
Preferably, the irradiation assembly comprises a precise solar intensity meter arranged inside the sealed box body and a solar radiation energy collector arranged on the outer wall of the box body.
Preferably, an opening for installing the irradiation component is arranged on the side wall of the sealed box body.
Has the advantages that:
1. the utility model has the advantages that the irradiation device, the heating device and the refrigerating device are arranged, the concrete structure is simplified, the operation is convenient, the popularization is convenient, and a more real sun irradiation road surface simulation test environment can be provided;
2. the heating plate controlled independently provides a constant-power plane heat source for the test piece, and the organic combination setting of related measurement elements such as the irradiation assembly, the temperature sensor and the temperature recorder is matched, so that the integrated measurement of multiple indexes such as the photothermal performance of the pavement material is realized, the accuracy and the operability of the test are improved, the acquisition of related detection data of the low-heat-absorption asphalt pavement is facilitated, the experiment is not required to be designed again by an operator and combined, and the labor intensity of the operator is remarkably reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an external structural view of the present invention;
fig. 2 is an internal structural view of the present invention;
fig. 3 is a schematic structural view of the precision solar intensity meter of the present invention.
The reference numerals are explained below:
1. sealing the box body; 2. a multi-channel temperature recorder; 3. a box door; 4. a controller; 5. an opening; 6. a display; 7. a refrigeration device; 8. a shelf; 9. a heating plate; 10. a thermocouple; 11. heating wires; 12. a tank temperature sensor; 13. a centrifugal fan; 14. an illumination assembly; 1401. a xenon lamp tube; 1402. a light-gathering lampshade; 15. an irradiation assembly; 16. a precision solar intensity meter; 17. solar radiation energy collector.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model provides a many indexes of pavement material light and heat performance survey device, including sealed box 1, sealed box 1 includes inner box and outer container, and sealed box 1's outer container structural dimension is: 2000mm long, 1400mm wide, high 1100mm, the interior case structure size of sealed box 1 is: long 900mm, wide 800mm, high 600mm, sealed box 1 outer container adopts the zinc plate of derusting phosphorization as manufacturing material, sealed box 1 inner container adopts SUS304 stainless steel board as manufacturing material, sealed box 1 outer wall is installed and is sealed box door 3, irradiation assembly 14 is installed at the top in the sealed box 1, refrigerating plant 7 is installed to sealed box 1 inner wall bottom, install heater strip 11 on one of them width direction inner wall of sealed box 1, install case temperature sensor 12 on the sealed box 1 length direction inner wall, install irradiation assembly 15 on another width direction inner wall of sealed box 1, install display 6 on the outer wall of sealed box 1 width direction, 6 one side ann of display has multichannel temperature recorder 2 through screw fastening connection, controller 4 is installed to multichannel temperature recorder 2 top, the multi-channel temperature recorder is characterized in that a thermocouple 10 and a heating sheet 9 are arranged in the sealed box body 1, the controller 4 is electrically connected with the refrigerating device 7, the irradiation assembly 15, the heating wire 11 and the heating sheet 9, the thermocouple 10 is electrically connected with the multi-channel temperature recorder 2, and the temperature in the box can be freely selected by an experimenter within 10-60 ℃ through the combined work of the refrigerating device 7, the heating wire 11, the box temperature sensor 12 and the controller 4.
As an alternative embodiment, the heating sheet 9 is a polyimide heating sheet 9, and the heating sheet 9 may provide a constant power planar heat source with an area of 150 × 150 mm.
The sealed box body 1 is also internally provided with a centrifugal fan 13, and the centrifugal fan 13 can enable the sealed box body 1 to generate summer normal-speed circulating air.
The test piece shelf 8 is arranged at the bottom of the sealing box body 1, the inner wall of the sealing box body 1 is provided with limiting clamping grooves at equal intervals along the height direction, and the test piece shelf 8 is clamped in the limiting clamping grooves, so that an operator can conveniently install and position the test piece shelf 8.
The irradiation component 14 comprises three xenon lamp tubes which are arranged in parallel and a light-gathering lampshade 1402 which ensures that light emitted by the xenon lamp is uniformly irradiated in the sealed box body 1, the xenon lamp tubes are connected with the controller 4, a xenon lamp heat dissipation device is arranged on the irradiation component 14 in a matched mode, the xenon lamp heat dissipation device can ensure that a light source can be normally used under high-power load, the service life of the tubes is ensured, a xenon lamp radiation light source consists of three 1800W long-arc xenon lamps, the radiation intensity of any position of the box body can be freely selected by an experimenter within 20W/m2-1200W/m2 under the control of an internal program of the controller 4 and the detection of the irradiation component 15, and the emission wavelength of the xenon lamp light source is 290nm-800 nm.
Install the heat preservation intermediate layer of the cotton insulation material preparation of polyurethane foam between 1 inner box of seal box and the outer container, the heat preservation intermediate layer is used for keeping warm, avoids the inside temperature loss of device.
Irradiation subassembly 15 is including installing sealed box 1 inside accurate solar intensity meter 16 and the solar radiation energy collector 17 of installing on the box outer wall, and the indoor test that solar reflectance can be realized to cooperation solar radiation energy collector 17 and accurate solar intensity meter 16's use, thermocouple 10 hinders the group and includes 24 accurate thermocouples 10 to can carry out the temperature acquisition of a plurality of positions of test piece through multichannel temperature recorder 2.
The side wall of the sealed box body 1 is provided with an opening 5 for installing the irradiation component 15, and the opening 5 can provide an installation position for a solar intensity meter.
By adopting the structure, when the device is used, the box body door 3 is opened, two asphalt mixture rut plate test pieces are placed on the test shelf 8, five temperature measuring points are selected on the upper surface of the test piece, five temperature measuring points are correspondingly selected on the lower surface of the test piece, after the box temperature sensor 12 is installed, the test piece is placed in a clamp with an upper opening 5 wrapped with heat insulation materials, then the clamp is placed on the shelf 8, after the box body door 3 is closed, the irradiation component 14 is opened through the controller 4, the centrifugal fan 13 in the device can generate speed circulation breeze, then an operator sets irradiance required by an experiment through the controller 4 and sets the temperature required in the sealed box body 1, the irradiation component 15, the heating wire 11 and the heating sheet 9 work to carry out heating treatment on the inner sealed box body 1, after the experiment is started, the temperature recorder 4 is opened to record the temperature required on the test piece, The maximum recording time of the data recorder for the temperature data of the lower surface can reach 1 month, the data recording interval can be freely set by an experimenter, and the intuitive cooling effect of the material can be obtained by comparing the recorded data with a reference test piece;
during the test, a 150X 50mm sample I is placed, a heating plate 9 is placed on the sample I, then a thermocouple 10 is placed in the center of the heating plate 9, a 150X 15mm sample II is placed, the thermocouple 10 is placed on the upper surface of the sample II, a 150X 50mm sample III is placed on the sample II, after the initial temperature is stable, the heating plate 9 works to heat the sample, a stopwatch is used for timing, a temperature recorder is used for recording the central temperature of the heating plate 9, when the specified time is reached, the central temperature between the sample II and the sample III is recorded, after the height of the middle sample is measured, the temperature conductivity coefficient and the heat conductivity coefficient of the asphalt mixture can be calculated according to the test principle of a normal power plane heat source method;
fixing a precise solar intensity meter 16 at the end of a mechanical arm of a support, enabling the support to penetrate through a reserved opening 5 of a sealing box body 1, placing the support in the sealing box body 1 at a certain height away from the surface of a test piece, opening an irradiation assembly 14, enabling the precise solar intensity meter 16 to alternately face an upward light source and face the surface of a measured object, and reading the solar irradiation intensity E0 and the irradiation intensity E1 reflected by the surface through a solar radiation energy collector 17 after the reading is stable. Then using E1 to compare E0 to obtain a solar reflectance ratio for the point.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a many indexs of road surface material light and heat performance survey device which characterized in that: the device comprises a sealing box body (1), the sealing box body (1) comprises an inner box and an outer box, a sealing box door (3) is installed on the outer wall of the sealing box body (1), an irradiation component (14) is installed at the top in the sealing box body (1), a refrigerating device (7) is installed at the bottom of the inner wall of the sealing box body (1), a heating wire (11) is installed on the inner wall of one width direction of the sealing box body (1), a box temperature sensor (12) is installed on the inner wall of the length direction of the sealing box body (1), an irradiation component (15) is installed on the inner wall of the other width direction of the sealing box body (1), a display (6) is installed on the outer wall of the width direction of the sealing box body (1), a multi-channel temperature recorder (2) is installed on one side of the display (6) through screw fastening connection, and a controller (, be provided with thermocouple (10) and heating plate (9) in sealed box (1), controller (4) and refrigerating plant (7), irradiation subassembly (15) heater strip (11) with heating plate (9) electric connection, thermocouple (10) with multichannel temperature recorder (2) electric connection.
2. The multi-index measurement device for the photothermal performance of a pavement material according to claim 1, comprising: the heating sheet (9) is a polyimide heating sheet.
3. The multi-index measurement device for the photothermal performance of a pavement material according to claim 1, comprising: and a centrifugal fan (13) is also arranged in the sealed box body (1).
4. The multi-index measurement device for the photothermal performance of a pavement material according to claim 1, comprising: the test piece storage box is characterized in that a test piece shelf (8) is arranged at the bottom of the sealing box body (1), limiting clamping grooves are formed in the inner wall of the sealing box body (1) at equal intervals along the height direction, and the test piece shelf (8) is clamped in the limiting clamping grooves.
5. The multi-index measurement device for the photothermal performance of a pavement material according to claim 1, comprising: the irradiation component (14) comprises three xenon lamp tubes (1401) which are arranged in parallel and a light-gathering lamp shade (1402) which ensures that light emitted by the xenon lamp is uniformly irradiated in the sealed box body (1), and the xenon lamp tubes (1401) are electrically connected with the controller (4).
6. The multi-index measurement device for the photothermal performance of a pavement material according to claim 1, comprising: and a heat-insulating interlayer made of polyurethane foam heat-insulating material is arranged between the inner box and the outer box of the sealed box body (1).
7. The multi-index measurement device for the photothermal performance of a pavement material according to claim 1, comprising: the irradiation component (15) comprises a precise solar intensity meter (16) and a solar radiation energy collector (17), the precise solar intensity meter (16) is installed inside the sealed box body (1), and the solar radiation energy collector (17) is installed on the outer wall of the sealed box body (1).
8. The multi-index measurement device for the photothermal performance of a pavement material according to claim 1, comprising: and an opening (5) for installing an irradiation component (15) is arranged on the side wall of the sealed box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920538202.XU CN209841746U (en) | 2019-04-19 | 2019-04-19 | Multi-index measuring device for photothermal performance of pavement material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920538202.XU CN209841746U (en) | 2019-04-19 | 2019-04-19 | Multi-index measuring device for photothermal performance of pavement material |
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| CN209841746U true CN209841746U (en) | 2019-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114839219A (en) * | 2022-03-31 | 2022-08-02 | 北京工业大学 | Phase-change asphalt self-temperature-adjusting effect evaluation device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114839219A (en) * | 2022-03-31 | 2022-08-02 | 北京工业大学 | Phase-change asphalt self-temperature-adjusting effect evaluation device and method |
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